Programmed GM Body Control Module 15837419 | VIN Flashed

Restore Control and End Electrical Frustration in Your GM Vehicle

Are you battling a vehicle that seems to have a mind of its own? Flickering dash lights, power windows that won’t cooperate, a security system that randomly activates, or a battery that’s dead every morning? As a technician with over two decades of diagnostic experience, I’ve seen these exact issues hundreds of times. More often than not, the culprit is a failing Body Control Module (BCM). This isn’t just an inconvenience; it’s a breakdown in your vehicle’s central nervous system, affecting comfort, safety, and reliability.

This isn’t just another part. This is a complete, ready-to-install solution. We take a high-quality replacement GM Body Control Module and program it specifically to your vehicle’s VIN using the latest GM software updates. This critical step ensures that the module communicates flawlessly with your vehicle’s other computers, just as it did from the factory. You get a reliable fix that restores full functionality without the exorbitant cost and hassle of a dealership visit for programming.

Is Your GM Showing These Signs of BCM Failure?

A failing BCM can cause a wide range of confusing symptoms. If you’re experiencing any of the following, this module is likely the solution you need:

• ✔ Erratic or non-functional power windows, door locks, and interior/exterior lights.
• ✔ The security or anti-theft system light stays on or prevents the car from starting.
• ✔ Dashboard gauges behaving strangely or not working at all.
• ✔ Communication error codes, such as U0140, U0155, or other U-series codes.
• ✔ Unexplained parasitic battery drain that kills your battery overnight.
• ✔ Horn honking unexpectedly or not working when pressed.
• ✔ Remote keyless entry (RKE) system is inoperative.

Your Straightforward BCM Installation Guide

Installing your pre-programmed BCM is a manageable job for a confident DIYer. While the exact location varies by model (check the fitment list), the general process is similar. Always disconnect the battery before you begin.

1. Safety First: Disconnect the negative terminal from your vehicle’s battery and secure it away from the post to prevent accidental contact.
2. Locate the BCM: Find your old BCM. Common locations include under the driver’s side dash near the steering column, behind a kick panel, or in the center console area.
3. Disconnect and Remove: Carefully unplug the electrical connectors. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the old module from its mounting bracket.
4. Install the New Module: Mount your new, pre-programmed BCM in the same location. Reconnect all electrical connectors firmly until they click into place.
5. Reconnect Power: Reattach the negative battery terminal. The vehicle may run through a self-check sequence.
6. Perform Final Checks: Start the vehicle and test all body functions—lights, locks, windows, radio, etc. Note the post-installation procedures below, as some relearns may be necessary.

Important Post-Installation Information

Because this GM Body Control Module is central to many systems, a couple of additional steps may be required after installation to ensure everything works perfectly:

• ✔ Airbag System Sync: If your airbag/SRS warning light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure must be performed. This requires a professional-grade scan tool to sync the new BCM with the airbag system. This is only needed if the light is on.
• ✔ Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be necessary for proper brake light and traction control operation. This can often be done with a capable bidirectional scan tool.
• ✔ No Core Charge: You are not required to return your old BCM. There is no core charge or deposit associated with this purchase.

Disclaimer: Vehicle systems vary. For procedures specific to your exact model, always consult a factory service manual or a certified automotive technician.

Verified Compatibility for Your Vehicle

This module is a direct replacement for a wide range of GM vehicles and supersedes multiple part numbers, ensuring a perfect match. Please confirm your vehicle is on this list. This module replaces part numbers: 10382479, 15093910, 15276271, 15299986, 15819552, 15828601, 15837419, 15872388, 15872421, 15880684, 15921352, 15921353, 15948438, 15948439, 20815898, 20839063, 20864767, 20864768, 20921435, 20921436, 20935349, 22860591, 25826124, 25826125, 25847588, 25847589, 25892622, 25910474, 25934762, 25934763, 95151084.